Operation of the sedan Nissan Bluebird Sylphy requires regular attention to the braking system, since the safety of the driver and passengers depends on its serviceability. The front brake mechanisms experience the greatest load when stopping the car, so the condition front pads is a critical indicator of the technical condition of the machine. Ignoring signs of wear can lead to costly caliper and rotor repairs.
Many owners Nissan Bluebird Sylphy are faced with a dilemma: replace parts with original ones or choose high-quality analogues. The auto parts market offers a wide range of products from leading manufacturers, but not all of them are suitable for the Japanese sedan. The wrong choice of lining material or geometry can cause overheating, reduced braking efficiency and accelerated disc wear.
In this article we will look in detail at how to determine wear, which articles are the standard of quality, and how to properly replace them yourself. We will pay special attention to the nuances of caliper design that are characteristic of different generations of the model. Nissan Bluebird Sylphy. Only an integrated approach will ensure reliable operation of the braking system for many kilometers.
Diagnosis of brake lining wear
You can determine the moment when replacement is necessary both visually and by indirect signs in the behavior of the car. Brake shoe has a special wear indicator, which, when a critical thickness is reached, begins to emit a metallic grinding sound. This sound occurs when the metal base of the pad comes into contact with the disc, which is unacceptable for long-term use.
The second sure sign is a change in braking characteristics. If the pedal becomes softer or, conversely, vibration appears when pressed, this is a signal of problems in the system. Nissan Bluebird Sylphy has sensitive steering, and any deviations in the operation of the front wheels are immediately felt by the driver through the steering wheel.
Regular diagnostics should include checking the thickness of the friction layer. To do this, you do not always need to remove the wheel - many models have inspection windows in the caliper. If there is no window, you will need to remove the wheel for visual inspection. Minimum thickness the working part of the pad is usually 2-3 millimeters.
- 🔊 The appearance of a metallic grinding or squeaking sound during light braking
- 📉 Increased braking distance and the need to press the pedal harder
- 📉 Steering wheel vibration when braking at speeds above 60 km/h
⚠️ Warning: If you hear a sharp metallic sound, stop driving immediately and call a tow truck. Driving with completely worn pads will lead to the destruction of the brake disc and jamming of the caliper.
Original spare parts and high-quality analogues
When choosing components for Nissan Bluebird Sylphy owners often prefer original spare parts Nissan Genuine Parts. They guarantee a perfect match of the geometry and composition of the friction mixture developed by the manufacturing plant’s engineers. However, the cost of the original is often two to three times higher than the price of analogues, which makes such a choice not always economically feasible.
The modern market offers excellent alternatives from proven brands such as TRW, Textar, Brembo or Nisshinbo. These manufacturers supply products to the assembly lines of many auto giants, so the quality of their products is often identical to the original. The main thing is to avoid fakes and buy parts only from official dealers or large chain stores.
It is important to consider that for different generations Nissan Bluebird Sylphy (eg G11, G12 or G13) different types of calipers can be used. This means that the pad part numbers are not universal. Before purchasing, you must check the vehicle's VIN code to ensure there is no error when ordering.
Comparing the characteristics of popular brands will help you make an informed choice:
| Brand | Material type | Noise level | Service life |
|---|---|---|---|
| Nissan (Original) | Semi-metallic | Low | Medium |
| TRW | Ceramic/Composite | Very low | High |
| Textar | Organic | Medium | High |
| Nisshinbo | Semi-metallic | Low | Medium |
- Original Nissan
- Premium analogs (TRW, Brembo)
- Budget analogues
- I only buy on sale
Preparatory work before replacement
Before starting work, it is necessary to ensure safety and prepare the necessary tools. Jack and safety stands are required, since lifting the car only on a jack to work under it is strictly prohibited. You will also need a set of keys, usually these are sockets 14, 17 and 19 millimeters, depending on the year of manufacture of the model.
Be sure to have brake cleaner and caliper guide lube ready. Using unsuitable lubricants may result in mechanism seizure or corrosion. Never use regular motor oil or graphite lubricant in brake components.
Before unscrewing the caliper mounting bolts, it is recommended to clean them of dirt and rust using a wire brush and penetrating lubricant. This will simplify the dismantling process and reduce the risk of stripping the thread. If the bolts are very stuck, give them time to soak in the product before attempting to unscrew them.
☑️ Preparing to replace pads
⚠️ Attention: Before starting work, be sure to open the brake fluid reservoir cap to control the fluid level. When the caliper pistons are compressed, the level may rise and overflow.
Step-by-step replacement instructions
Removing the old assembly begins with unscrewing the caliper guides. Usually there are two of them: upper and lower. After the bolts are unscrewed, carefully move the caliper to the side without kinking the brake hose. It is best to hang it on a wire or hook to eliminate stress on the hose.
Next, the worn pads are removed. Pay attention to their position and the presence of anti-squeak plates (clips). These metal elements are often riveted to new pads, but if they remain on the old ones, they need to be moved to new ones or replaced. Caliper pistons must be pressed in before installing new, thicker pads.
To press in the piston, use a special tool or a vice, distributing the force evenly. Be careful not to damage the piston boot. If the boot is torn, this can cause brake fluid to leak and subsequent caliper failure. In this case, it is better to entrust the repair to professionals.
- 🔧 Unscrew the two caliper guide bolts with a wrench
14mm - 🔧 Remove the old pads and clean the seats from dust
- 🔧 Press the caliper piston into the body until it stops
- 🔧 Install new pads with new clips (if included)
What to do if the piston does not press in?
If the piston is stuck, it may be corroded or the boot may be damaged. Do not use excessive force as this may tear the boot. In this case, it is better to remove the entire caliper and disassemble it for maintenance or replacement of the piston.
Setting up and running in new pads
After installing new parts, it is important to assemble the unit correctly. Replace the guide bolts with new ones if the old ones show signs of corrosion or deformation. Before tightening, apply some heat-resistant lubricant to the threads, but be careful not to get it on the friction linings. Tightening torque bolts must comply with the manufacturer's specifications, usually 25-30 Nm.
Before starting to drive, be sure to press the brake pedal all the way down several times. This is necessary so that the caliper pistons reach their working stroke and press the pads against the disc. If this is not done, the first press of the pedal may not produce a braking effect, which will lead to an accident.
The process of running in new pads takes approximately 200-300 kilometers. During this period, sudden braking and extreme loads should be avoided. The friction material must gradually rub against the surface of the disc to achieve maximum contact area. Proper break-in directly affects the service life and efficiency of the braking system..
Frequent maintenance errors
One of the most common mistakes is ignoring the condition of the brake discs. If the discs have deep grooves, wear or runout, installing new pads will not solve the vibration problem. In such cases, resurfacing or complete replacement of the discs is required. Disc thickness should also be checked with a caliper and compared with the minimum acceptable value.
Another mistake is using low-quality lubricant for the caliper guides. Many craftsmen use lithol or grease, which is unacceptable. These lubricants destroy the rubber boots and are washed out with water. Use only special silicone or synthetic lubricants intended for brake systems, e.g. Permatex or Loctite.
It is also worth noting the problem with the wear sensor. On some trim levels Nissan Bluebird Sylphy electronic sensors are installed. If you change the pads, but do not replace the wear sensor (if it has worked), an error will light up on the dashboard. Sometimes the sensor just needs to be moved to the other side, but more often it needs to be replaced.
FAQ: Frequently asked questions
How long do front pads last on a Nissan Bluebird Sylphy?
Service life depends on driving style and operating conditions. On average, original pads last 30-40 thousand kilometers; high-quality analogues can last up to 50-60 thousand. In urban environments with frequent traffic jams, the resource may be reduced.
Is it possible to change pads on only one axle?
No, brake pads are always replaced as a set on one axle (both front wheels). Replacing only one wheel will result in uneven braking, which can cause the vehicle to skid when stopping suddenly.
Do I need to change the brake fluid when replacing the pads?
When replacing pads, it is not necessary to change the fluid if the hydraulic system has not been opened. However, it is recommended to check its condition every 2 years. If the fluid is cloudy or saturated with moisture, it should be replaced.
Why do new pads squeak?
Creaking in the first kilometers of driving is normal, as the grinding process is taking place. If the squeak persists for a long time, the pads may be of poor quality, the guides are overtightened, or the linings are contaminated with oil.